build pyPortMidi (MSVC)

replace portmidi.h, porttime.h, win32/portmidi.lib and win/porttime.lib with the same named files in the portmidi download/build

change line 357 of pypm.pyx to read:

while(Pm_Poll(self.midi) != pmNoError):

change line 52 of pyPortMidi's setup.py file to read:

libraries = ["portmidi", "porttime"],

build: sudo python setup.py install. Failing:

extensions must be built with a compiler than can generate compatible binaries.
Visual Studio 2003 was not found on this system. If you have Cygwin installed,
you can try compiling with MingW32, by passing "-c mingw32" to setup.py.